2-3/4"OD

Manufactured for use in vacuum piping systems, CF flanges use a mechanical seal to create a leak-tight connection between flanges. When the bolts squeeze the flanges together, the soft metal gasket melds into a thin groove cut into the flat flange surface which provides the leak-tight seal. Flanges operate in temperature from -196°C through 450°C and pressures from 760 Torr (103mbar) to less than 1 x 10-12 Torr (1 x 10-12 mbar). Available in fixed or rotatable designs. A fixed design is a one piece bolt-hole pattern. The rotatable design consists of a weld ring and bolt ring, which rotates to mate with the other flange for easier installation.

Fixed

SKU OD - A Thru Hole - B C D Setback - E F Bolt Hole Diam/Thrd Bolt Holes Bolt Hole Style Price
1772 2.72 1.62 1.75 0.5 0.209 2.312 0.265 6 Tapped $29.00 Add to cart
1771 2.72 1.5 1.635 0.5 0.209 2.312 0.265 6 Tapped $29.00 Add to cart
1770 2.72 1.375 1.51 0.5 0.209 2.312 0.265 6 Tapped $29.00 Add to cart
1769 2.72 1.125 1.26 0.5 0.209 2.312 0.265 6 Tapped $29.00 Add to cart
1768 2.72 0.875 1.01 0.5 0.209 2.312 0.265 6 Tapped $29.00 Add to cart
1767 2.72 0.625 0.76 0.5 0.209 2.312 0.265 6 Tapped $29.00 Add to cart
1766 2.72 0.505 0.5 2.312 0.265 6 Tapped $29.00 Add to cart
1765 2.72 0.255 0.5 2.312 0.265 6 Tapped $29.00 Add to cart
1764 2.72 0.5 2.312 0.265 6 Tapped $29.00 Add to cart
1751 2.72 1.62 1.75 0.5 0.209 2.312 0.265 6 Clearance $15.00 Add to cart
1756 2.72 1.5 1.635 0.5 0.209 2.312 0.265 6 Clearance $15.00 Add to cart
1757 2.72 1.375 1.51 0.5 0.209 2.312 0.265 6 Clearance $15.00 Add to cart
1758 2.72 1.125 1.26 0.5 0.209 2.312 0.265 6 Clearance $15.00 Add to cart
1759 2.72 0.875 1.01 0.5 0.209 2.312 0.265 6 Clearance $15.00 Add to cart
1760 2.72 0.625 0.76 0.5 0.209 2.312 0.265 6 Clearance $15.00 Add to cart
1761 2.72 0.505 0.5 2.312 0.265 6 Clearance $15.00 Add to cart
1762 2.72 0.255 0.5 2.312 0.265 6 Clearance $15.00 Add to cart
1763 2.72 - - 0.5 - 2.312 0.265 6 Clearance $15.00 Add to cart

Rotatable

SKU OD - A Thru Hole - B C D Setback - E F Bolt Hole Diam/Thrd Bolt Holes Bolt Hole Style Price
1909 2.72 1.5 1.635 0.5 0.209 2.312 0.265 6 Tapped $34.00 Add to cart
1908 2.72 1.375 1.51 0.5 0.209 2.312 0.265 6 Tapped $34.00 Add to cart
1907 2.72 1.125 1.26 0.5 0.209 2.312 0.265 6 Tapped $34.00 Add to cart
1906 2.72 0.875 1.01 0.5 0.209 2.312 0.265 6 Tapped $34.00 Add to cart
1905 2.72 0.625 0.76 0.5 0.209 2.312 0.265 6 Tapped $34.00 Add to cart
1904 2.72 0.505 0.5 2.312 0.265 6 Tapped $34.00 Add to cart
1903 2.72 0.255 0.5 2.312 0.265 6 Tapped $34.00 Add to cart
1902 2.72 0.5 2.312 0.265 6 Tapped $34.00 Add to cart
1901 2.72 1.5 1.635 0.5 0.209 2.312 0.265 6 Clearance $22.00 Add to cart
1900 2.72 1.375 1.51 0.5 0.209 2.312 0.265 6 Clearance $22.00 Add to cart
1899 2.72 1.125 1.26 0.5 0.209 2.312 0.265 6 Clearance $22.00 Add to cart
1898 2.72 0.875 1.01 0.5 0.209 2.312 0.265 6 Clearance $22.00 Add to cart
1897 2.72 0.625 0.76 0.5 0.209 2.312 0.265 6 Clearance $22.00 Add to cart
1896 2.72 0.505 0.5 2.312 0.265 6 Clearance $22.00 Add to cart
1995 2.72 0.255 0.5 2.312 0.265 6 Clearance $22.00 Add to cart
1894 2.72 - - 0.5 - 2.312 0.265 6 Clearance $22.00 Add to cart